Construction, Maintenance, and Repairing of Aircraft Instruments JA Gordon Beaufort

Construction, Maintenance, and Repairing of Aircraft Instruments JA Gordon BeaufortThis 30 page document is a reprint by Henry Paulson & Co. of content of Construction, Maintenance, and Repairing of Aircraft Instruments by J. A. Gordon from London's Horological Journal. The Henry Paulson firm appears to have been engaged in the manufacturing and or marketing of precision instrument tools and equipment. It appears that they also published technical references and catalogs such as this in an effort to expand their service offerings to

While we don't know the year of manufacture

as documented in the aircraft's parts list dated 1951

Our example is 'experienced' with the patina evidencing its age

and Automatic/Manual switch requires the proper electrical connection to toggle

It has some slight water damage on one page

describing its use

The indicator displays aircraft mach speed from 0

if the serial numbering methodology is the same as used in WWII instruments

As an offshoot of this equipment Ryan have also developed a helicopter hovering aid (AN/APN-97) which presumably uses Doppler signals to tell the pilot whether or not his machine is stationary above ground or sea

These cameras were designed to record results obtained in aerial and ground gunnery training and for producing visual records of aerial combat

In addition to its reliability

This particular model was used in the A6M2 version of the Japanese Navy Figher Zero